title: Assessment of the effects of pranayama/alternate nostril breathing on the parasympathetic nervous system in young adults.
abstract: OBJECTIVE
  Pranayama, the art of breath control, is considered to be the heart of yogic exercises. The present study was performed with the aim of evaluating the effect of Pranayama/Alternate Nostril Breathing (A.N.B.) on the parasympathetic nervous system in healthy young adult males.
  
  
  METHODS
  A comparative account of the expiratioin: inspiration ratio (E:I ratio) and the orthostatic tolerance test (30:15 ratio) at the basal level, at the start of the study and after the practice of A.N.B for 5 minutes and following a training period of 6 weeks.
  
  
  CONCLUSIONS
  This study showed that the parasympathetic tone was enhanced appreciably in the participants. The observations of this study suggest that the yogic exercise of A.N.B. influences the parasympathetic nervous system significantly.
authors.affiliation: Associate Professor, Department of Physiology, VCSG Govt Medical Sciences and Research Institute , Srinagar, Uttarakhand, India .
authors.forename: Anant Narayan
authors.initials: AN
authors.lastname: Sinha
authors.forename: Desh
authors.initials: D
authors.lastname: Deepak
authors.forename: Vimal Singh
authors.initials: VS
authors.lastname: Gusain
keywords: Alternate nostril breathing (A.N.B.); Parasympathetic nervous system; Pranayama; The 30:15 ratio; The E:I ratio; Yogic exercises